Its too bad if someone missed the opportunity to add some really cheap (doesn't have to look pretty) absorption above a perforated metal ceiling. Perhaps there

Its too bad if someone missed the opportunity to add some really cheap (doesn't have to look pretty) absorption above a perforated metal ceiling. Perhaps there's a stratification of heat up there generated by lights that's causing the metal to creak and pop. Yes, meeting rooms generally need some mass to their ceiling if the walls don't go full height.